1067961881 has 16 divisors (see below), whose sum is σ = 1234934400. Its totient is φ = 904652928.

The previous prime is 1067961863. The next prime is 1067961887. The reversal of 1067961881 is 1881697601.

It is a cyclic number.

It is not a de Polignac number, because 1067961881 - 2²² = 1063767577 is a prime.

It is a super-2 number, since 2×1067961881² = 2281085158538116322, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1067961887) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 220421 + ... + 225213.

It is an arithmetic number, because the mean of its divisors is an integer number (77183400).

Almost surely, 2^1067961881 is an apocalyptic number.

It is an amenable number.

1067961881 is a deficient number, since it is larger than the sum of its proper divisors (166972519).

1067961881 is a wasteful number, since it uses less digits than its factorization.

1067961881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5168.

The product of its (nonzero) digits is 145152, while the sum is 47.

The square root of 1067961881 is about 32679.6860603036. The cubic root of 1067961881 is about 1022.1592988157.

The spelling of 1067961881 in words is "one billion, sixty-seven million, nine hundred sixty-one thousand, eight hundred eighty-one".